acronym for Big Momma Oza.(1) A reference to any woman (usually of African American origin) of sizable proportion who eats fried chicken and screams "OH LAWDY". (2) An insult aimed at one's friend's fat mom. (3) A replacement for your mom. (4) A sexual reference hinting to the fact that you had sex with a voluptuous woman

"Damn yo did you see that woman at KFC"
"Yeah dude she was a straight BMO"

"OMG dude I met this girl at the club last night and sex with her while I was drunk"
"You do know she was a BMO"
"OH Shiiit that explains the black talk and AIDS"

"What did you do last night before the game?"
"Banged that Big Momma Oza so hard"
"-___-"

An EMO who get down to the Hip Hop.
Those who embrace the Emo (as defined in UrbanDictionary.com) influence of tight wool sweaters, tighter jeans, itchy scarfs (even in the summer), ripped chucks with favorite bands signature, and black square rimmed glasses, etc... and love to work it out in a hip hop cyhper or a circle. ---from E&E